VBoxServiceVMInfo.cpp@ 42154

Last change on this file since 42154 was 42154, checked in by vboxsync, 13 years ago
VS2010 preps.
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 33.3 KB

Line
1	/* $Id: VBoxServiceVMInfo.cpp 42154 2012-07-13 23:00:53Z vboxsync $ */
2	/** @file
3	* VBoxService - Virtual Machine Information for the Host.
4	*/
5
6	/*
7	* Copyright (C) 2009-2010 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.215389.xyz. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18
19
20	/*******************************************************************************
21	* Header Files *
22	*******************************************************************************/
23	#ifdef RT_OS_WINDOWS
24	# ifdef TARGET_NT4 /* HACK ALERT! PMIB_IPSTATS undefined if 0x0400 with newer SDKs. */
25	# undef _WIN32_WINNT
26	# define _WIN32_WINNT 0x0500
27	# endif
28	# include <winsock2.h>
29	# include <iphlpapi.h>
30	# include <ws2tcpip.h>
31	# include <windows.h>
32	# include <Ntsecapi.h>
33	#else
34	# define __STDC_LIMIT_MACROS
35	# include <arpa/inet.h>
36	# include <errno.h>
37	# include <netinet/in.h>
38	# include <sys/ioctl.h>
39	# include <sys/socket.h>
40	# include <net/if.h>
41	# include <unistd.h>
42	# ifndef RT_OS_OS2
43	# ifndef RT_OS_FREEBSD
44	# include <utmpx.h> /* @todo FreeBSD 9 should have this. */
45	# endif
46	# endif
47	# ifdef RT_OS_SOLARIS
48	# include <sys/sockio.h>
49	# include <net/if_arp.h>
50	# endif
51	# ifdef RT_OS_FREEBSD
52	# include <ifaddrs.h> /* getifaddrs, freeifaddrs */
53	# include <net/if_dl.h> /* LLADDR */
54	# include <netdb.h> /* getnameinfo */
55	# endif
56	#endif
57
58	#include <iprt/mem.h>
59	#include <iprt/thread.h>
60	#include <iprt/string.h>
61	#include <iprt/semaphore.h>
62	#include <iprt/system.h>
63	#include <iprt/time.h>
64	#include <iprt/assert.h>
65	#include <VBox/version.h>
66	#include <VBox/VBoxGuestLib.h>
67	#include "VBoxServiceInternal.h"
68	#include "VBoxServiceUtils.h"
69	#include "VBoxServicePropCache.h"
70
71
72	/*******************************************************************************
73	* Global Variables *
74	*******************************************************************************/
75	/** The vminfo interval (milliseconds). */
76	static uint32_t g_cMsVMInfoInterval = 0;
77	/** The semaphore we're blocking on. */
78	static RTSEMEVENTMULTI g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
79	/** The guest property service client ID. */
80	static uint32_t g_uVMInfoGuestPropSvcClientID = 0;
81	/** Number of logged in users in OS. */
82	static uint32_t g_cVMInfoLoggedInUsers = UINT32_MAX;
83	/** The guest property cache. */
84	static VBOXSERVICEVEPROPCACHE g_VMInfoPropCache;
85	/** The VM session ID. Changes whenever the VM is restored or reset. */
86	static uint64_t g_idVMInfoSession;
87
88
89
90	/**
91	* Signals the event so that a re-enumeration of VM-specific
92	* information (like logged in users) can happen.
93	*
94	* @return IPRT status code.
95	*/
96	int VBoxServiceVMInfoSignal(void)
97	{
98	/* Trigger a re-enumeration of all logged-in users by unblocking
99	* the multi event semaphore of the VMInfo thread. */
100	if (g_hVMInfoEvent)
101	return RTSemEventMultiSignal(g_hVMInfoEvent);
102
103	return VINF_SUCCESS;
104	}
105
106
107	/** @copydoc VBOXSERVICE::pfnPreInit */
108	static DECLCALLBACK(int) VBoxServiceVMInfoPreInit(void)
109	{
110	return VINF_SUCCESS;
111	}
112
113
114	/** @copydoc VBOXSERVICE::pfnOption */
115	static DECLCALLBACK(int) VBoxServiceVMInfoOption(const char ppszShort, int argc, char argv, int *pi)
116	{
117	int rc = -1;
118	if (ppszShort)
119	/* no short options */;
120	else if (!strcmp(argv[*pi], "--vminfo-interval"))
121	rc = VBoxServiceArgUInt32(argc, argv, "", pi,
122	&g_cMsVMInfoInterval, 1, UINT32_MAX - 1);
123	return rc;
124	}
125
126
127	/** @copydoc VBOXSERVICE::pfnInit */
128	static DECLCALLBACK(int) VBoxServiceVMInfoInit(void)
129	{
130	/*
131	* If not specified, find the right interval default.
132	* Then create the event sem to block on.
133	*/
134	if (!g_cMsVMInfoInterval)
135	g_cMsVMInfoInterval = g_DefaultInterval * 1000;
136	if (!g_cMsVMInfoInterval)
137	g_cMsVMInfoInterval = 10 * 1000;
138
139	int rc = RTSemEventMultiCreate(&g_hVMInfoEvent);
140	AssertRCReturn(rc, rc);
141
142	VbglR3GetSessionId(&g_idVMInfoSession);
143	/* The status code is ignored as this information is not available with VBox < 3.2.10. */
144
145	rc = VbglR3GuestPropConnect(&g_uVMInfoGuestPropSvcClientID);
146	if (RT_SUCCESS(rc))
147	VBoxServiceVerbose(3, "VMInfo: Property Service Client ID: %#x\n", g_uVMInfoGuestPropSvcClientID);
148	else
149	{
150	/* If the service was not found, we disable this service without
151	causing VBoxService to fail. */
152	if (rc == VERR_HGCM_SERVICE_NOT_FOUND) /* Host service is not available. */
153	{
154	VBoxServiceVerbose(0, "VMInfo: Guest property service is not available, disabling the service\n");
155	rc = VERR_SERVICE_DISABLED;
156	}
157	else
158	VBoxServiceError("VMInfo: Failed to connect to the guest property service! Error: %Rrc\n", rc);
159	RTSemEventMultiDestroy(g_hVMInfoEvent);
160	g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
161	}
162
163	if (RT_SUCCESS(rc))
164	{
165	VBoxServicePropCacheCreate(&g_VMInfoPropCache, g_uVMInfoGuestPropSvcClientID);
166
167	/*
168	* Declare some guest properties with flags and reset values.
169	*/
170	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList",
171	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, NULL /* Delete on exit */);
172	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsers",
173	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, "0");
174	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/NoLoggedInUsers",
175	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_TRANSIENT, "true");
176	VBoxServicePropCacheUpdateEntry(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/Net/Count",
177	VBOXSERVICEPROPCACHEFLAG_TEMPORARY \| VBOXSERVICEPROPCACHEFLAG_ALWAYS_UPDATE, NULL /* Delete on exit */);
178	}
179	return rc;
180	}
181
182
183	/**
184	* Writes the properties that won't change while the service is running.
185	*
186	* Errors are ignored.
187	*/
188	static void vboxserviceVMInfoWriteFixedProperties(void)
189	{
190	/*
191	* First get OS information that won't change.
192	*/
193	char szInfo[256];
194	int rc = RTSystemQueryOSInfo(RTSYSOSINFO_PRODUCT, szInfo, sizeof(szInfo));
195	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Product",
196	"%s", RT_FAILURE(rc) ? "" : szInfo);
197
198	rc = RTSystemQueryOSInfo(RTSYSOSINFO_RELEASE, szInfo, sizeof(szInfo));
199	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Release",
200	"%s", RT_FAILURE(rc) ? "" : szInfo);
201
202	rc = RTSystemQueryOSInfo(RTSYSOSINFO_VERSION, szInfo, sizeof(szInfo));
203	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/Version",
204	"%s", RT_FAILURE(rc) ? "" : szInfo);
205
206	rc = RTSystemQueryOSInfo(RTSYSOSINFO_SERVICE_PACK, szInfo, sizeof(szInfo));
207	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/OS/ServicePack",
208	"%s", RT_FAILURE(rc) ? "" : szInfo);
209
210	/*
211	* Retrieve version information about Guest Additions and installed files (components).
212	*/
213	char *pszAddVer;
214	char *pszAddVerExt;
215	char *pszAddRev;
216	rc = VbglR3GetAdditionsVersion(&pszAddVer, &pszAddVerExt, &pszAddRev);
217	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/Version",
218	"%s", RT_FAILURE(rc) ? "" : pszAddVer);
219	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/VersionExt",
220	"%s", RT_FAILURE(rc) ? "" : pszAddVerExt);
221	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/Revision",
222	"%s", RT_FAILURE(rc) ? "" : pszAddRev);
223	if (RT_SUCCESS(rc))
224	{
225	RTStrFree(pszAddVer);
226	RTStrFree(pszAddVerExt);
227	RTStrFree(pszAddRev);
228	}
229
230	#ifdef RT_OS_WINDOWS
231	/*
232	* Do windows specific properties.
233	*/
234	char *pszInstDir;
235	rc = VbglR3GetAdditionsInstallationPath(&pszInstDir);
236	VBoxServiceWritePropF(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestAdd/InstallDir",
237	"%s", RT_FAILURE(rc) ? "" : pszInstDir);
238	if (RT_SUCCESS(rc))
239	RTStrFree(pszInstDir);
240
241	VBoxServiceWinGetComponentVersions(g_uVMInfoGuestPropSvcClientID);
242	#endif
243	}
244
245
246	/**
247	* Provide information about active users.
248	*/
249	static int vboxserviceVMInfoWriteUsers(void)
250	{
251	int rc = VINF_SUCCESS;
252	char *pszUserList = NULL;
253	uint32_t cUsersInList = 0;
254
255	#ifdef RT_OS_WINDOWS
256	# ifndef TARGET_NT4
257	rc = VBoxServiceVMInfoWinWriteUsers(&pszUserList, &cUsersInList);
258	# else
259	rc = VERR_NOT_IMPLEMENTED;
260	# endif
261
262	#elif defined(RT_OS_FREEBSD)
263	/** @todo FreeBSD: Port logged on user info retrieval.
264	* However, FreeBSD 9 supports utmpx, so we could use the code
265	* block below (?). */
266	rc = VERR_NOT_IMPLEMENTED;
267
268	#elif defined(RT_OS_OS2)
269	/** @todo OS/2: Port logged on (LAN/local/whatever) user info retrieval. */
270	rc = VERR_NOT_IMPLEMENTED;
271
272	#else
273	setutxent();
274	utmpx *ut_user;
275	uint32_t cListSize = 32;
276
277	/* Allocate a first array to hold 32 users max. */
278	char papszUsers = (char )RTMemAllocZ(cListSize * sizeof(char *));
279	if (papszUsers == NULL)
280	rc = VERR_NO_MEMORY;
281
282	/* Process all entries in the utmp file. */
283	while ( (ut_user = getutxent())
284	&& RT_SUCCESS(rc))
285	{
286	VBoxServiceVerbose(4, "Found logged in user \"%s\"\n",
287	ut_user->ut_user);
288	if (cUsersInList > cListSize)
289	{
290	cListSize += 32;
291	void pvNew = RTMemRealloc(papszUsers, cListSize sizeof(char*));
292	AssertPtrBreakStmt(pvNew, cListSize -= 32);
293	papszUsers = (char **)pvNew;
294	}
295
296	/* Make sure we don't add user names which are not
297	* part of type USER_PROCESS. */
298	if (ut_user->ut_type == USER_PROCESS)
299	{
300	bool fFound = false;
301	for (uint32_t i = 0; i < cUsersInList && !fFound; i++)
302	fFound = strcmp(papszUsers[i], ut_user->ut_user) == 0;
303
304	if (!fFound)
305	{
306	rc = RTStrDupEx(&papszUsers[cUsersInList], (const char *)ut_user->ut_user);
307	if (RT_FAILURE(rc))
308	break;
309	cUsersInList++;
310	}
311	}
312	}
313
314	/* Calc the string length. */
315	size_t cchUserList = 0;
316	for (uint32_t i = 0; i < cUsersInList; i++)
317	cchUserList += (i != 0) + strlen(papszUsers[i]);
318
319	/* Build the user list. */
320	rc = RTStrAllocEx(&pszUserList, cchUserList + 1);
321	if (RT_SUCCESS(rc))
322	{
323	char *psz = pszUserList;
324	for (uint32_t i = 0; i < cUsersInList; i++)
325	{
326	if (i != 0)
327	*psz++ = ',';
328	size_t cch = strlen(papszUsers[i]);
329	memcpy(psz, papszUsers[i], cch);
330	psz += cch;
331	}
332	*psz = '\0';
333	}
334
335	/* Cleanup. */
336	for (uint32_t i = 0; i < cUsersInList; i++)
337	RTStrFree(papszUsers[i]);
338	RTMemFree(papszUsers);
339
340	endutxent(); /* Close utmpx file. */
341	#endif
342	Assert(RT_FAILURE(rc) \|\| cUsersInList == 0 \|\| (pszUserList && *pszUserList));
343
344	/* If the user enumeration above failed, reset the user count to 0 except
345	* we didn't have enough memory anymore. In that case we want to preserve
346	* the previous user count in order to not confuse third party tools which
347	* rely on that count. */
348	if (RT_FAILURE(rc))
349	{
350	if (rc == VERR_NO_MEMORY)
351	{
352	static int s_iVMInfoBitchedOOM = 0;
353	if (s_iVMInfoBitchedOOM++ < 3)
354	VBoxServiceVerbose(0, "Warning: Not enough memory available to enumerate users! Keeping old value (%u)\n",
355	g_cVMInfoLoggedInUsers);
356	cUsersInList = g_cVMInfoLoggedInUsers;
357	}
358	else
359	cUsersInList = 0;
360	}
361
362	VBoxServiceVerbose(4, "cUsersInList: %u, pszUserList: %s, rc=%Rrc\n",
363	cUsersInList, pszUserList ? pszUserList : "<NULL>", rc);
364
365	if (pszUserList && cUsersInList > 0)
366	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList", "%s", pszUserList);
367	else
368	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsersList", NULL);
369	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/LoggedInUsers", "%u", cUsersInList);
370	if (g_cVMInfoLoggedInUsers != cUsersInList)
371	{
372	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/OS/NoLoggedInUsers",
373	cUsersInList == 0 ? "true" : "false");
374	g_cVMInfoLoggedInUsers = cUsersInList;
375	}
376	if (RT_SUCCESS(rc) && pszUserList)
377	RTStrFree(pszUserList);
378	return rc;
379	}
380
381
382	/**
383	* Provide information about the guest network.
384	*/
385	static int vboxserviceVMInfoWriteNetwork(void)
386	{
387	int rc = VINF_SUCCESS;
388	uint32_t cIfacesReport = 0;
389	char szPropPath[256];
390
391	#ifdef RT_OS_WINDOWS
392	IP_ADAPTER_INFO *pAdpInfo = NULL;
393
394	# ifndef TARGET_NT4
395	ULONG cbAdpInfo = sizeof(*pAdpInfo);
396	pAdpInfo = (IP_ADAPTER_INFO *)RTMemAlloc(cbAdpInfo);
397	if (!pAdpInfo)
398	{
399	VBoxServiceError("VMInfo/Network: Failed to allocate IP_ADAPTER_INFO\n");
400	return VERR_NO_MEMORY;
401	}
402	DWORD dwRet = GetAdaptersInfo(pAdpInfo, &cbAdpInfo);
403	if (dwRet == ERROR_BUFFER_OVERFLOW)
404	{
405	IP_ADAPTER_INFO pAdpInfoNew = (IP_ADAPTER_INFO)RTMemRealloc(pAdpInfo, cbAdpInfo);
406	if (pAdpInfoNew)
407	{
408	pAdpInfo = pAdpInfoNew;
409	dwRet = GetAdaptersInfo(pAdpInfo, &cbAdpInfo);
410	}
411	}
412	else if (dwRet == ERROR_NO_DATA)
413	{
414	VBoxServiceVerbose(3, "VMInfo/Network: No network adapters available\n");
415
416	/* If no network adapters available / present in the
417	* system we pretend success to not bail out too early. */
418	dwRet = ERROR_SUCCESS;
419	}
420
421	if (dwRet != ERROR_SUCCESS)
422	{
423	if (pAdpInfo)
424	RTMemFree(pAdpInfo);
425	VBoxServiceError("VMInfo/Network: Failed to get adapter info: Error %d\n", dwRet);
426	return RTErrConvertFromWin32(dwRet);
427	}
428	# endif /* !TARGET_NT4 */
429
430	SOCKET sd = WSASocket(AF_INET, SOCK_DGRAM, 0, 0, 0, 0);
431	if (sd == SOCKET_ERROR) /* Socket invalid. */
432	{
433	int wsaErr = WSAGetLastError();
434	/* Don't complain/bail out with an error if network stack is not up; can happen
435	* on NT4 due to start up when not connected shares dialogs pop up. */
436	if (WSAENETDOWN == wsaErr)
437	{
438	VBoxServiceVerbose(0, "VMInfo/Network: Network is not up yet.\n");
439	wsaErr = VINF_SUCCESS;
440	}
441	else
442	VBoxServiceError("VMInfo/Network: Failed to get a socket: Error %d\n", wsaErr);
443	if (pAdpInfo)
444	RTMemFree(pAdpInfo);
445	return RTErrConvertFromWin32(wsaErr);
446	}
447
448	INTERFACE_INFO InterfaceList[20] = {0};
449	unsigned long nBytesReturned = 0;
450	if (WSAIoctl(sd,
451	SIO_GET_INTERFACE_LIST,
452	0,
453	0,
454	&InterfaceList,
455	sizeof(InterfaceList),
456	&nBytesReturned,
457	0,
458	0) == SOCKET_ERROR)
459	{
460	VBoxServiceError("VMInfo/Network: Failed to WSAIoctl() on socket: Error: %d\n", WSAGetLastError());
461	if (pAdpInfo)
462	RTMemFree(pAdpInfo);
463	return RTErrConvertFromWin32(WSAGetLastError());
464	}
465	int cIfacesSystem = nBytesReturned / sizeof(INTERFACE_INFO);
466
467	/** @todo Use GetAdaptersInfo() and GetAdapterAddresses (IPv4 + IPv6) for more information. */
468	for (int i = 0; i < cIfacesSystem; ++i)
469	{
470	sockaddr_in *pAddress;
471	u_long nFlags = 0;
472	if (InterfaceList[i].iiFlags & IFF_LOOPBACK) /* Skip loopback device. */
473	continue;
474	nFlags = InterfaceList[i].iiFlags;
475	pAddress = (sockaddr_in *)&(InterfaceList[i].iiAddress);
476	Assert(pAddress);
477	char szIp[32];
478	RTStrPrintf(szIp, sizeof(szIp), "%s", inet_ntoa(pAddress->sin_addr));
479	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
480	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szIp);
481
482	pAddress = (sockaddr_in *) & (InterfaceList[i].iiBroadcastAddress);
483	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
484	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
485
486	pAddress = (sockaddr_in *)&(InterfaceList[i].iiNetmask);
487	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
488	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
489
490	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
491	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, nFlags & IFF_UP ? "Up" : "Down");
492
493	# ifndef TARGET_NT4
494	IP_ADAPTER_INFO *pAdp;
495	for (pAdp = pAdpInfo; pAdp; pAdp = pAdp->Next)
496	if (!strcmp(pAdp->IpAddressList.IpAddress.String, szIp))
497	break;
498
499	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
500	if (pAdp)
501	{
502	char szMac[32];
503	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
504	pAdp->Address[0], pAdp->Address[1], pAdp->Address[2],
505	pAdp->Address[3], pAdp->Address[4], pAdp->Address[5]);
506	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
507	}
508	else
509	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, NULL);
510	# endif /* !TARGET_NT4 */
511
512	cIfacesReport++;
513	}
514	if (pAdpInfo)
515	RTMemFree(pAdpInfo);
516	if (sd >= 0)
517	closesocket(sd);
518
519	#elif defined(RT_OS_FREEBSD)
520	struct ifaddrs *pIfHead = NULL;
521
522	/* Get all available interfaces */
523	rc = getifaddrs(&pIfHead);
524	if (rc < 0)
525	{
526	rc = RTErrConvertFromErrno(errno);
527	VBoxServiceError("VMInfo/Network: Failed to get all interfaces: Error %Rrc\n");
528	return rc;
529	}
530
531	/* Loop through all interfaces and set the data. */
532	for (struct ifaddrs *pIfCurr = pIfHead; pIfCurr; pIfCurr = pIfCurr->ifa_next)
533	{
534	/*
535	* Only AF_INET and no loopback interfaces
536	* @todo: IPv6 interfaces
537	*/
538	if ( pIfCurr->ifa_addr->sa_family == AF_INET
539	&& !(pIfCurr->ifa_flags & IFF_LOOPBACK))
540	{
541	char szInetAddr[NI_MAXHOST];
542
543	memset(szInetAddr, 0, NI_MAXHOST);
544	getnameinfo(pIfCurr->ifa_addr, sizeof(struct sockaddr_in),
545	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
546	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
547	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
548
549	memset(szInetAddr, 0, NI_MAXHOST);
550	getnameinfo(pIfCurr->ifa_broadaddr, sizeof(struct sockaddr_in),
551	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
552	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
553	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
554
555	memset(szInetAddr, 0, NI_MAXHOST);
556	getnameinfo(pIfCurr->ifa_netmask, sizeof(struct sockaddr_in),
557	szInetAddr, NI_MAXHOST, NULL, 0, NI_NUMERICHOST);
558	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
559	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szInetAddr);
560
561	/* Search for the AF_LINK interface of the current AF_INET one and get the mac. */
562	for (struct ifaddrs *pIfLinkCurr = pIfHead; pIfLinkCurr; pIfLinkCurr = pIfLinkCurr->ifa_next)
563	{
564	if ( pIfLinkCurr->ifa_addr->sa_family == AF_LINK
565	&& !strcmp(pIfCurr->ifa_name, pIfLinkCurr->ifa_name))
566	{
567	char szMac[32];
568	uint8_t *pu8Mac = NULL;
569	struct sockaddr_dl pLinkAddress = (struct sockaddr_dl )pIfLinkCurr->ifa_addr;
570
571	AssertPtr(pLinkAddress);
572	pu8Mac = (uint8_t *)LLADDR(pLinkAddress);
573	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
574	pu8Mac[0], pu8Mac[1], pu8Mac[2], pu8Mac[3], pu8Mac[4], pu8Mac[5]);
575	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
576	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
577	break;
578	}
579	}
580
581	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
582	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, pIfCurr->ifa_flags & IFF_UP ? "Up" : "Down");
583
584	cIfacesReport++;
585	}
586	}
587
588	/* Free allocated resources. */
589	freeifaddrs(pIfHead);
590
591	#else /* !RT_OS_WINDOWS && !RT_OS_FREEBSD */
592	int sd = socket(AF_INET, SOCK_DGRAM, 0);
593	if (sd < 0)
594	{
595	rc = RTErrConvertFromErrno(errno);
596	VBoxServiceError("VMInfo/Network: Failed to get a socket: Error %Rrc\n", rc);
597	return rc;
598	}
599
600	ifconf ifcfg;
601	char buffer[1024] = {0};
602	ifcfg.ifc_len = sizeof(buffer);
603	ifcfg.ifc_buf = buffer;
604	if (ioctl(sd, SIOCGIFCONF, &ifcfg) < 0)
605	{
606	close(sd);
607	rc = RTErrConvertFromErrno(errno);
608	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFCONF) on socket: Error %Rrc\n", rc);
609	return rc;
610	}
611
612	ifreq* ifrequest = ifcfg.ifc_req;
613	int cIfacesSystem = ifcfg.ifc_len / sizeof(ifreq);
614
615	for (int i = 0; i < cIfacesSystem; ++i)
616	{
617	sockaddr_in *pAddress;
618	if (ioctl(sd, SIOCGIFFLAGS, &ifrequest[i]) < 0)
619	{
620	rc = RTErrConvertFromErrno(errno);
621	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFFLAGS) on socket: Error %Rrc\n", rc);
622	break;
623	}
624	if (ifrequest[i].ifr_flags & IFF_LOOPBACK) /* Skip the loopback device. */
625	continue;
626
627	bool fIfUp = !!(ifrequest[i].ifr_flags & IFF_UP);
628	pAddress = ((sockaddr_in *)&ifrequest[i].ifr_addr);
629	Assert(pAddress);
630	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/IP", cIfacesReport);
631	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
632
633	if (ioctl(sd, SIOCGIFBRDADDR, &ifrequest[i]) < 0)
634	{
635	rc = RTErrConvertFromErrno(errno);
636	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFBRDADDR) on socket: Error %Rrc\n", rc);
637	break;
638	}
639	pAddress = (sockaddr_in *)&ifrequest[i].ifr_broadaddr;
640	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Broadcast", cIfacesReport);
641	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
642
643	if (ioctl(sd, SIOCGIFNETMASK, &ifrequest[i]) < 0)
644	{
645	rc = RTErrConvertFromErrno(errno);
646	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFNETMASK) on socket: Error %Rrc\n", rc);
647	break;
648	}
649	# if defined(RT_OS_OS2) \|\| defined(RT_OS_SOLARIS)
650	pAddress = (sockaddr_in *)&ifrequest[i].ifr_addr;
651	# else
652	pAddress = (sockaddr_in *)&ifrequest[i].ifr_netmask;
653	# endif
654
655	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/V4/Netmask", cIfacesReport);
656	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", inet_ntoa(pAddress->sin_addr));
657
658	# if defined(RT_OS_SOLARIS)
659	/*
660	* "ifreq" is obsolete on Solaris. We use the recommended "lifreq".
661	* We might fail if the interface has not been assigned an IP address.
662	* That doesn't matter; as long as it's plumbed we can pick it up.
663	* But, if it has not acquired an IP address we cannot obtain it's MAC
664	* address this way, so we just use all zeros there.
665	*/
666	RTMAC IfMac;
667	RT_ZERO(IfMac);
668	struct lifreq IfReq;
669	RT_ZERO(IfReq);
670	AssertCompile(sizeof(IfReq.lifr_name) >= sizeof(ifrequest[i].ifr_name));
671	strncpy(IfReq.lifr_name, ifrequest[i].ifr_name, sizeof(ifrequest[i].ifr_name));
672	if (ioctl(sd, SIOCGLIFADDR, &IfReq) >= 0)
673	{
674	struct arpreq ArpReq;
675	RT_ZERO(ArpReq);
676	memcpy(&ArpReq.arp_pa, &IfReq.lifr_addr, sizeof(struct sockaddr_in));
677
678	if (ioctl(sd, SIOCGARP, &ArpReq) >= 0)
679	memcpy(&IfMac, ArpReq.arp_ha.sa_data, sizeof(IfMac));
680	else
681	{
682	rc = RTErrConvertFromErrno(errno);
683	VBoxServiceError("VMInfo/Network: failed to ioctl(SIOCGARP) on socket: Error %Rrc\n", rc);
684	break;
685	}
686	}
687	else
688	{
689	VBoxServiceVerbose(2, "VMInfo/Network: Interface %d has no assigned IP address, skipping ...\n", i);
690	continue;
691	}
692	# else
693	# ifndef RT_OS_OS2 /** @todo port this to OS/2 */
694	if (ioctl(sd, SIOCGIFHWADDR, &ifrequest[i]) < 0)
695	{
696	rc = RTErrConvertFromErrno(errno);
697	VBoxServiceError("VMInfo/Network: Failed to ioctl(SIOCGIFHWADDR) on socket: Error %Rrc\n", rc);
698	break;
699	}
700	# endif
701	# endif
702
703	# ifndef RT_OS_OS2 /** @todo port this to OS/2 */
704	char szMac[32];
705	# if defined(RT_OS_SOLARIS)
706	uint8_t *pu8Mac = IfMac.au8;
707	# else
708	uint8_t pu8Mac = (uint8_t)&ifrequest[i].ifr_hwaddr.sa_data[0]; /* @todo see above */
709	# endif
710	RTStrPrintf(szMac, sizeof(szMac), "%02X%02X%02X%02X%02X%02X",
711	pu8Mac[0], pu8Mac[1], pu8Mac[2], pu8Mac[3], pu8Mac[4], pu8Mac[5]);
712	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/MAC", cIfacesReport);
713	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, "%s", szMac);
714	# endif /* !OS/2*/
715
716	RTStrPrintf(szPropPath, sizeof(szPropPath), "/VirtualBox/GuestInfo/Net/%u/Status", cIfacesReport);
717	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, szPropPath, fIfUp ? "Up" : "Down");
718	cIfacesReport++;
719	} /* For all interfaces */
720
721	close(sd);
722	if (RT_FAILURE(rc))
723	VBoxServiceError("VMInfo/Network: Network enumeration for interface %u failed with error %Rrc\n", cIfacesReport, rc);
724
725	#endif /* !RT_OS_WINDOWS */
726
727	#if 0 /* Zapping not enabled yet, needs more testing first. */
728	/*
729	* Zap all stale network interface data if the former (saved) network ifaces count
730	* is bigger than the current one.
731	*/
732
733	/* Get former count. */
734	uint32_t cIfacesReportOld;
735	rc = VBoxServiceReadPropUInt32(g_uVMInfoGuestPropSvcClientID, "/VirtualBox/GuestInfo/Net/Count", &cIfacesReportOld,
736	0 /* Min /, UINT32_MAX / Max */);
737	if ( RT_SUCCESS(rc)
738	&& cIfacesReportOld > cIfacesReport) /* Are some ifaces not around anymore? */
739	{
740	VBoxServiceVerbose(3, "VMInfo/Network: Stale interface data detected (%u old vs. %u current)\n",
741	cIfacesReportOld, cIfacesReport);
742
743	uint32_t uIfaceDeleteIdx = cIfacesReport;
744	do
745	{
746	VBoxServiceVerbose(3, "VMInfo/Network: Deleting stale data of interface %d ...\n", uIfaceDeleteIdx);
747	rc = VBoxServicePropCacheUpdateByPath(&g_VMInfoPropCache, NULL /* Value, delete /, 0 / Flags */, "/VirtualBox/GuestInfo/Net/%u", uIfaceDeleteIdx++);
748	} while (RT_SUCCESS(rc));
749	}
750	else if ( RT_FAILURE(rc)
751	&& rc != VERR_NOT_FOUND)
752	{
753	VBoxServiceError("VMInfo/Network: Failed retrieving old network interfaces count with error %Rrc\n", rc);
754	}
755	#endif
756
757	/*
758	* This property is a beacon which is _always_ written, even if the network configuration
759	* does not change. If this property is missing, the host assumes that all other GuestInfo
760	* properties are no longer valid.
761	*/
762	VBoxServicePropCacheUpdate(&g_VMInfoPropCache, "/VirtualBox/GuestInfo/Net/Count", "%d",
763	cIfacesReport);
764
765	/* Don't fail here; just report everything we got. */
766	return VINF_SUCCESS;
767	}
768
769
770	/** @copydoc VBOXSERVICE::pfnWorker */
771	DECLCALLBACK(int) VBoxServiceVMInfoWorker(bool volatile *pfShutdown)
772	{
773	int rc;
774
775	/*
776	* Tell the control thread that it can continue
777	* spawning services.
778	*/
779	RTThreadUserSignal(RTThreadSelf());
780
781	#ifdef RT_OS_WINDOWS
782	/* Required for network information (must be called per thread). */
783	WSADATA wsaData;
784	if (WSAStartup(MAKEWORD(2, 2), &wsaData))
785	VBoxServiceError("VMInfo/Network: WSAStartup failed! Error: %Rrc\n", RTErrConvertFromWin32(WSAGetLastError()));
786	#endif /* RT_OS_WINDOWS */
787
788	/*
789	* Write the fixed properties first.
790	*/
791	vboxserviceVMInfoWriteFixedProperties();
792
793	/*
794	* Now enter the loop retrieving runtime data continuously.
795	*/
796	for (;;)
797	{
798	rc = vboxserviceVMInfoWriteUsers();
799	if (RT_FAILURE(rc))
800	break;
801
802	rc = vboxserviceVMInfoWriteNetwork();
803	if (RT_FAILURE(rc))
804	break;
805
806	/*
807	* Flush all properties if we were restored.
808	*/
809	uint64_t idNewSession = g_idVMInfoSession;
810	VbglR3GetSessionId(&idNewSession);
811	if (idNewSession != g_idVMInfoSession)
812	{
813	VBoxServiceVerbose(3, "VMInfo: The VM session ID changed, flushing all properties\n");
814	vboxserviceVMInfoWriteFixedProperties();
815	VBoxServicePropCacheFlush(&g_VMInfoPropCache);
816	g_idVMInfoSession = idNewSession;
817	}
818
819	/*
820	* Block for a while.
821	*
822	* The event semaphore takes care of ignoring interruptions and it
823	* allows us to implement service wakeup later.
824	*/
825	if (*pfShutdown)
826	break;
827	int rc2 = RTSemEventMultiWait(g_hVMInfoEvent, g_cMsVMInfoInterval);
828	if (*pfShutdown)
829	break;
830	if (rc2 != VERR_TIMEOUT && RT_FAILURE(rc2))
831	{
832	VBoxServiceError("VMInfo: RTSemEventMultiWait failed; rc2=%Rrc\n", rc2);
833	rc = rc2;
834	break;
835	}
836	else if (RT_LIKELY(RT_SUCCESS(rc2)))
837	{
838	/* Reset event semaphore if it got triggered. */
839	rc2 = RTSemEventMultiReset(g_hVMInfoEvent);
840	if (RT_FAILURE(rc2))
841	rc2 = VBoxServiceError("VMInfo: RTSemEventMultiReset failed; rc2=%Rrc\n", rc2);
842	}
843	}
844
845	#ifdef RT_OS_WINDOWS
846	WSACleanup();
847	#endif
848
849	return rc;
850	}
851
852
853	/** @copydoc VBOXSERVICE::pfnStop */
854	static DECLCALLBACK(void) VBoxServiceVMInfoStop(void)
855	{
856	RTSemEventMultiSignal(g_hVMInfoEvent);
857	}
858
859
860	/** @copydoc VBOXSERVICE::pfnTerm */
861	static DECLCALLBACK(void) VBoxServiceVMInfoTerm(void)
862	{
863	if (g_hVMInfoEvent != NIL_RTSEMEVENTMULTI)
864	{
865	/** @todo temporary solution: Zap all values which are not valid
866	* anymore when VM goes down (reboot/shutdown ). Needs to
867	* be replaced with "temporary properties" later.
868	*
869	* One idea is to introduce a (HGCM-)session guest property
870	* flag meaning that a guest property is only valid as long
871	* as the HGCM session isn't closed (e.g. guest application
872	* terminates). [don't remove till implemented]
873	*/
874	/** @todo r=bird: Drop the VbglR3GuestPropDelSet call here and use the cache
875	* since it remembers what we've written. */
876	/* Delete the "../Net" branch. */
877	const char apszPat[1] = { "/VirtualBox/GuestInfo/Net/" };
878	int rc = VbglR3GuestPropDelSet(g_uVMInfoGuestPropSvcClientID, &apszPat[0], RT_ELEMENTS(apszPat));
879
880	/* Destroy property cache. */
881	VBoxServicePropCacheDestroy(&g_VMInfoPropCache);
882
883	/* Disconnect from guest properties service. */
884	rc = VbglR3GuestPropDisconnect(g_uVMInfoGuestPropSvcClientID);
885	if (RT_FAILURE(rc))
886	VBoxServiceError("VMInfo: Failed to disconnect from guest property service! Error: %Rrc\n", rc);
887	g_uVMInfoGuestPropSvcClientID = 0;
888
889	RTSemEventMultiDestroy(g_hVMInfoEvent);
890	g_hVMInfoEvent = NIL_RTSEMEVENTMULTI;
891	}
892	}
893
894
895	/**
896	* The 'vminfo' service description.
897	*/
898	VBOXSERVICE g_VMInfo =
899	{
900	/* pszName. */
901	"vminfo",
902	/* pszDescription. */
903	"Virtual Machine Information",
904	/* pszUsage. */
905	" [--vminfo-interval <ms>]"
906	,
907	/* pszOptions. */
908	" --vminfo-interval Specifies the interval at which to retrieve the\n"
909	" VM information. The default is 10000 ms.\n"
910	,
911	/* methods */
912	VBoxServiceVMInfoPreInit,
913	VBoxServiceVMInfoOption,
914	VBoxServiceVMInfoInit,
915	VBoxServiceVMInfoWorker,
916	VBoxServiceVMInfoStop,
917	VBoxServiceVMInfoTerm
918	};
919

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/Additions/common/VBoxService/VBoxServiceVMInfo.cpp@ 42154

Download in other formats: